{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["nationality", "location contains"], "input": "Evidence suggested that the two students , a man found dead in a portable toilet near Pier 54 on the West Side , and a man found dead at a storage center in SoHo , had all taken a combination of heroin and cocaine that is commonly called a speedball , the police said ."}
{"nationality": [], "location contains": [{"subject": "West Side", "object": "SoHo"}]}